ITK  4.13.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType > Class Template Referenceabstract

#include <itkObjectToObjectOptimizerBase.h>

+ Inheritance diagram for itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >:
+ Collaboration diagram for itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >:

Detailed Description

template<typename TInternalComputationValueType = double>
class itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >

Abstract base for object-to-object optimizers.

The goal of this optimizer hierarchy is to work with metrics of any type, i.e. working with any kind of object, such as image or point-set.

Transform parameters are not manipulated directly. Instead, the optimizer retrieves the metric derivative from the metric, modifies the derivative as required, then passes it back to the metric as an update. The metric then processes it as appropriate, typically by passing it to its transform that is being optimized.

The user can scale each component of the gradient (derivative) at each iteration in one of two ways:

1) manually, by setting a scaling vector using method SetScales(). SetScales() allows setting of a per-local-parameter scaling array. If unset, the m_Scales array will be initialized to all 1's. Note that when used with transforms with local support, these scales correspond to each local parameter, and not to each parameter. For example, in a DisplacementFieldTransform of dimensionality N, the Scales is size N, with each element corresponding to a dimension within the transform's displacement field, and is applied to each vector in the displacement field.

or,

2) automatically, by assigning a ScalesEstimator using SetScalesEstimator(). When ScalesEstimator is assigned, the optimizer is enabled by default to estimate scales, and can be changed via SetDoEstimateScales(). The scales are estimated and assigned once, during the call to StartOptimization(). This option will override any manually-assigned scales.

SetWeights() allows setting of a per-local-parameter weighting array. If unset, the weights are treated as identity. Weights are multiplied by the gradient at the same time scaling is applied. Weights are different than scales, and may be used, for example, to easily mask out a particular parameter during optimzation to hold it constant. Or they may be used to apply another kind of prior knowledge.

Threading of some optimizer operations may be handled within derived classes, for example in GradientDescentOptimizer.

Note
Derived classes must override StartOptimization, and then call this base class version to perform common initializations.

Definition at line 82 of file itkObjectToObjectOptimizerBase.h.

Public Types

typedef SmartPointer< const SelfConstPointer
 
typedef MetricType::DerivativeType DerivativeType
 
typedef MetricType::MeasureType MeasureType
 
typedef
ObjectToObjectMetricBaseTemplate
< TInternalComputationValueType > 
MetricType
 
typedef MetricType::Pointer MetricTypePointer
 
typedef
MetricType::NumberOfParametersType 
NumberOfParametersType
 
typedef OptimizerParameters
< TInternalComputationValueType > 
ParametersType
 
typedef SmartPointer< SelfPointer
 
typedef
OptimizerParameterScalesEstimatorTemplate
< TInternalComputationValueType > 
ScalesEstimatorType
 
typedef OptimizerParameters
< TInternalComputationValueType > 
ScalesType
 
typedef
ObjectToObjectOptimizerBaseTemplate 
Self
 
typedef std::ostringstream StopConditionDescriptionType
 
typedef std::string StopConditionReturnStringType
 
typedef Object Superclass
 
- Public Types inherited from itk::Object
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef Object Self
 
typedef LightObject Superclass
 
- Public Types inherited from itk::LightObject
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef LightObject Self
 

Public Member Functions

virtual SizeValueType GetCurrentIteration () const
 
virtual const MeasureTypeGetCurrentMetricValue () const
 
virtual const ParametersTypeGetCurrentPosition () const
 
virtual const char * GetNameOfClass () const
 
virtual SizeValueType GetNumberOfIterations () const
 
virtual const ThreadIdTypeGetNumberOfThreads () const
 
virtual const ScalesTypeGetScales () const
 
virtual const bool & GetScalesAreIdentity () const
 
bool GetScalesInitialized () const
 
virtual const
StopConditionReturnStringType 
GetStopConditionDescription () const =0
 
virtual const MeasureTypeGetValue () const
 
virtual const ScalesTypeGetWeights () const
 
virtual const bool & GetWeightsAreIdentity () const
 
virtual void SetNumberOfIterations (SizeValueType _arg)
 
virtual void SetNumberOfThreads (ThreadIdType number)
 
virtual void SetScalesEstimator (ScalesEstimatorType *_arg)
 
virtual void SetWeights (ScalesType _arg)
 
virtual void StartOptimization (bool doOnlyInitialization=false)
 
virtual void SetMetric (MetricType *_arg)
 
virtual MetricTypeGetModifiableMetric ()
 
virtual const MetricTypeGetMetric () const
 
virtual void SetScales (const ScalesType &scales)
 
virtual void SetDoEstimateScales (bool _arg)
 
virtual const bool & GetDoEstimateScales () const
 
virtual void DoEstimateScalesOn ()
 
virtual void DoEstimateScalesOff ()
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
 
unsigned long AddObserver (const EventObject &event, Command *) const
 
virtual LightObject::Pointer CreateAnother () const override
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
virtual void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
virtual void SetReferenceCount (int) override
 
virtual void UnRegister () const noexceptoverride
 
virtual void SetObjectName (std::string _arg)
 
virtual const std::string & GetObjectName () const
 
- Public Member Functions inherited from itk::LightObject
virtual void Delete ()
 
virtual int GetReferenceCount () const
 
 itkCloneMacro (Self)
 
void Print (std::ostream &os, Indent indent=0) const
 

Protected Member Functions

virtual void PrintSelf (std::ostream &os, Indent indent) const override
 
 ObjectToObjectOptimizerBaseTemplate ()
 
virtual ~ObjectToObjectOptimizerBaseTemplate () override
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
virtual void SetTimeStamp (const TimeStamp &time)
 
virtual ~Object () override
 
- Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer InternalClone () const
 
 LightObject ()
 
virtual void PrintHeader (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 

Protected Attributes

SizeValueType m_CurrentIteration
 
MeasureType m_CurrentMetricValue
 
bool m_DoEstimateScales
 
MetricTypePointer m_Metric
 
SizeValueType m_NumberOfIterations
 
ThreadIdType m_NumberOfThreads
 
ScalesType m_Scales
 
bool m_ScalesAreIdentity
 
ScalesEstimatorType::Pointer m_ScalesEstimator
 
ScalesType m_Weights
 
bool m_WeightsAreIdentity
 
- Protected Attributes inherited from itk::LightObject
AtomicInt< int > m_ReferenceCount
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::Object
static bool GetGlobalWarningDisplay ()
 
static void GlobalWarningDisplayOff ()
 
static void GlobalWarningDisplayOn ()
 
static Pointer New ()
 
static void SetGlobalWarningDisplay (bool flag)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Member Typedef Documentation

template<typename TInternalComputationValueType = double>
typedef SmartPointer< const Self > itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::ConstPointer

Definition at line 89 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef MetricType::DerivativeType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::DerivativeType

Derivative type

Definition at line 106 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef MetricType::MeasureType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::MeasureType

Measure type

Definition at line 112 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef ObjectToObjectMetricBaseTemplate< TInternalComputationValueType > itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::MetricType

Metric function type

Definition at line 102 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef MetricType::Pointer itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::MetricTypePointer

Definition at line 103 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef MetricType::NumberOfParametersType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::NumberOfParametersType

Number of parameters type

Definition at line 109 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef OptimizerParameters< TInternalComputationValueType > itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::ParametersType

Parameters type.

Definition at line 99 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef SmartPointer< Self > itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::Pointer

Definition at line 88 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef OptimizerParameterScalesEstimatorTemplate<TInternalComputationValueType> itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::ScalesEstimatorType

Definition at line 96 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef OptimizerParameters< TInternalComputationValueType > itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::ScalesType

Scale type.

Definition at line 92 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef ObjectToObjectOptimizerBaseTemplate itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::Self

Standard class typedefs.

Definition at line 86 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef std::ostringstream itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::StopConditionDescriptionType

Stop condition internal string type

Definition at line 118 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef std::string itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::StopConditionReturnStringType

Stop condition return string type

Definition at line 115 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
typedef Object itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::Superclass

Definition at line 87 of file itkObjectToObjectOptimizerBase.h.

Constructor & Destructor Documentation

template<typename TInternalComputationValueType = double>
itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::ObjectToObjectOptimizerBaseTemplate ( )
protected

Default constructor

template<typename TInternalComputationValueType = double>
virtual itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::~ObjectToObjectOptimizerBaseTemplate ( )
overrideprotectedvirtual

Default constructor

Member Function Documentation

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::DoEstimateScalesOff ( )
virtual

Option to use ScalesEstimator for scales estimation. The estimation is performed once at begin of optimization, and overrides any scales set using SetScales(). Default is true.

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::DoEstimateScalesOn ( )
virtual

Option to use ScalesEstimator for scales estimation. The estimation is performed once at begin of optimization, and overrides any scales set using SetScales(). Default is true.

template<typename TInternalComputationValueType = double>
virtual SizeValueType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetCurrentIteration ( ) const
virtual

Return current number of iterations.

Reimplemented in itk::GradientDescentOptimizerBasev4Template< TInternalComputationValueType >.

template<typename TInternalComputationValueType = double>
virtual const MeasureType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetCurrentMetricValue ( ) const
virtual

Accessor for metric value. Returns the value stored in m_CurrentMetricValue from the most recent call to evaluate the metric.

template<typename TInternalComputationValueType = double>
virtual const ParametersType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetCurrentPosition ( ) const
virtual

Get a reference to the current position of the optimization. This returns the parameters from the assigned metric, since the optimizer itself does not store a position.

template<typename TInternalComputationValueType = double>
virtual const bool& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetDoEstimateScales ( ) const
virtual

Option to use ScalesEstimator for scales estimation. The estimation is performed once at begin of optimization, and overrides any scales set using SetScales(). Default is true.

template<typename TInternalComputationValueType = double>
virtual const MetricType* itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetMetric ( ) const
virtual

Accessors for Metric

template<typename TInternalComputationValueType = double>
virtual MetricType* itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetModifiableMetric ( )
virtual

Accessors for Metric

template<typename TInternalComputationValueType = double>
virtual const char* itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetNameOfClass ( ) const
virtual
template<typename TInternalComputationValueType = double>
virtual SizeValueType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetNumberOfIterations ( ) const
virtual
template<typename TInternalComputationValueType = double>
virtual const ThreadIdType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetNumberOfThreads ( ) const
virtual

Get the number of threads set to be used.

template<typename TInternalComputationValueType = double>
virtual const ScalesType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetScales ( ) const
virtual

Get current parameters scaling.

template<typename TInternalComputationValueType = double>
virtual const bool& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetScalesAreIdentity ( ) const
virtual

Get whether scales are identity. Cannot be set

template<typename TInternalComputationValueType = double>
bool itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetScalesInitialized ( ) const

Get whether the scales have been set. Returns true if m_Scales.Size() > 0

template<typename TInternalComputationValueType = double>
virtual const StopConditionReturnStringType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetStopConditionDescription ( ) const
pure virtual
template<typename TInternalComputationValueType = double>
virtual const MeasureType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetValue ( ) const
virtual

Deprecated accessor for currently stored metric value for use by classes that support both v4 and v3 optimizers.

See Also
GetCurrentMetricValue()

Reimplemented in itk::OnePlusOneEvolutionaryOptimizerv4< TInternalComputationValueType >, and itk::PowellOptimizerv4< TInternalComputationValueType >.

template<typename TInternalComputationValueType = double>
virtual const ScalesType& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetWeights ( ) const
virtual

Get current parameters weights. This will return an empty array when weights have not been set by user.

template<typename TInternalComputationValueType = double>
virtual const bool& itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::GetWeightsAreIdentity ( ) const
virtual

Get whether weights are identity. Cannot be set

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::PrintSelf ( std::ostream &  os,
Indent  indent 
) const
overrideprotectedvirtual
template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetDoEstimateScales ( bool  _arg)
virtual

Option to use ScalesEstimator for scales estimation. The estimation is performed once at begin of optimization, and overrides any scales set using SetScales(). Default is true.

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetMetric ( MetricType _arg)
virtual

Accessors for Metric

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetNumberOfIterations ( SizeValueType  _arg)
virtual
template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetNumberOfThreads ( ThreadIdType  number)
virtual

Set the number of threads to use when threading. The default is the global default number of threads returned from itkMultiThreader.

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetScales ( const ScalesType scales)
inlinevirtual

Set current parameters scaling.

Definition at line 139 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetScalesEstimator ( ScalesEstimatorType _arg)
virtual

Set the scales estimator.

A ScalesEstimator is required for the scales estimation options to work. See the main documentation. Derived classes may also provide learning-rate estimation, in which case a scales estimator is also required.

See Also
SetDoEstimateScales()
template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::SetWeights ( ScalesType  _arg)
virtual

Set current parameters weights.

template<typename TInternalComputationValueType = double>
virtual void itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::StartOptimization ( bool  doOnlyInitialization = false)
virtual

Member Data Documentation

template<typename TInternalComputationValueType = double>
SizeValueType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_CurrentIteration
protected

Definition at line 229 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
MeasureType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_CurrentMetricValue
protected

Metric measure value at a given iteration, as most recently evaluated.

Definition at line 233 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
bool itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_DoEstimateScales
protected

Flag to control use of the ScalesEstimator (if set) for automatic scale estimation during StartOptimization()

Definition at line 257 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
MetricTypePointer itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_Metric
protected

Definition at line 227 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
SizeValueType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_NumberOfIterations
protected

Definition at line 230 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
ThreadIdType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_NumberOfThreads
protected

Definition at line 228 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
ScalesType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_Scales
protected

Scales. Size is expected to be == metric->GetNumberOfLocalParameters(). See the main documentation for more details.

Definition at line 237 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
bool itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_ScalesAreIdentity
protected

Flag to avoid unnecessary arithmetic when scales are identity.

Definition at line 246 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
ScalesEstimatorType::Pointer itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_ScalesEstimator
protected

Scales estimator. Optionally provided by user.

Definition at line 249 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
ScalesType itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_Weights
protected

Parameter weights. These are applied to local parameters, at the same time as scales. See main documentation. If not set by user, the array remains empty and treated as identity to simplify the reuse of an optimizer with transforms with different numbers of parameters.

Definition at line 243 of file itkObjectToObjectOptimizerBase.h.

template<typename TInternalComputationValueType = double>
bool itk::ObjectToObjectOptimizerBaseTemplate< TInternalComputationValueType >::m_WeightsAreIdentity
protected

Flag to avoid unnecessary arithmetic when weights are identity.

Definition at line 252 of file itkObjectToObjectOptimizerBase.h.


The documentation for this class was generated from the following file: